Add KeyboardEventCodeInteractiveTest

chrome/browser/keyboardevent_code_interactive_browsertest.cc

Index: chrome/browser/keyboardevent_code_interactive_browsertest.cc
diff --git a/chrome/browser/keyboardevent_code_interactive_browsertest.cc b/chrome/browser/keyboardevent_code_interactive_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..32275a2f33537324d226197e902e851bf98163e2
--- /dev/null
+++ b/chrome/browser/keyboardevent_code_interactive_browsertest.cc
@@ -0,0 +1,89 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+
+#include "base/strings/string_util.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/interactive_test_utils.h"
+#include "content/public/test/browser_test_utils.h"
+#include "content/public/test/test_utils.h"
+#include "ui/events/keycodes/keyboard_codes.h"
+
+namespace {
+// The html file to receive key events and exports all the events with
+// "report()" function. It has one magic key: pressing "X" to indicate the end
+// of all the keys.
+constexpr char kKeyboardEventCodeTestHtml[] = "/keyboardevent_code_test.html";
+}  // namespace
+
+class KeyboardEventCodeInteractiveTest : public InProcessBrowserTest {
+ public:
+  KeyboardEventCodeInteractiveTest() = default;
+  ~KeyboardEventCodeInteractiveTest() override = default;
+
+ protected:
+  // Starts the test page and waits for it to be loaded.
+  void StartTestPage();
+
+  // Sends a single key to the focused window.
+  void SendKey(ui::KeyboardCode code);
+
+  // Sends a magic KeyX to the focused window to stop the test case and receives
+  // the result.
+  std::string FinishTestAndGetResult();
+};
+
+void KeyboardEventCodeInteractiveTest::StartTestPage() {
+  ASSERT_TRUE(embedded_test_server()->Start());
+  ui_test_utils::NavigateToURLWithDisposition(
+      browser(),
+      embedded_test_server()->GetURL(kKeyboardEventCodeTestHtml),
+      WindowOpenDisposition::NEW_FOREGROUND_TAB,
+      ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
+  ASSERT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
+}
+
+void KeyboardEventCodeInteractiveTest::SendKey(ui::KeyboardCode code) {
+  ASSERT_TRUE(ui_test_utils::SendKeyPressSync(
+      browser(), code, false, false, false, false));
+}
+
+std::string KeyboardEventCodeInteractiveTest::FinishTestAndGetResult() {
+  // Magic KeyX to stop the test.
+  EXPECT_TRUE(ui_test_utils::SendKeyPressSync(browser(),
+      ui::VKEY_X, false, false, false, false));
+  std::string result;
+  EXPECT_TRUE(content::ExecuteScriptAndExtractString(
+      browser()->tab_strip_model()->GetActiveWebContents()->GetRenderViewHost(),
+      "report()",
+      &result));
+#if defined(OS_MACOSX)
+  // On MacOSX command key is used for most of the shortcuts, so replace it with
+  // control to reduce the complexity of comparison of the results.
+  base::ReplaceSubstringsAfterOffset(&result, 0, "MetaLeft", "ControlLeft");
+#endif
+  base::TrimWhitespaceASCII(result, base::TRIM_ALL, &result);
+  return result;
+}
+
+IN_PROC_BROWSER_TEST_F(KeyboardEventCodeInteractiveTest, SendKeys) {
+  ASSERT_EQ(browser()->tab_strip_model()->count(), 1);
+  StartTestPage();
+
+  SendKey(ui::VKEY_A);
+  SendKey(ui::VKEY_S);
+  SendKey(ui::VKEY_D);
+  SendKey(ui::VKEY_F);
+
+  std::string result = FinishTestAndGetResult();
+  ASSERT_EQ(result,
+            "KeyA\n"
+            "KeyS\n"
+            "KeyD\n"
+            "KeyF\n"
+            "KeyX");
+}